A charge of 2.20 µC is uniformly distributed on a ring of radius 9.0 cm. Find...

A charge of 2.20 µC is uniformly distributed on a ring of radius 9.0 cm. Find the electric field strength on the axis at the following locations. (be careful calculating c and d the last post was wrong. please include e.)

(a) 1.2 cm from the center of the ring
  N/C

(b) 3.9 cm from the center of the ring
  N/C

(c) 4.0 m from the center of the ring
  N/C

(d) Find the field strength at 4.0 m using the approximation that the ring is a point charge at the origin.
  N/C

(e) Compare your results for parts (c) and (d) by finding the ratio of the approximation to the exact result.

(f) Is your approximation result a good one? Explain your answer. (Do this on paper. Your instructor may ask you to turn in your work.)

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Expert Solution

genius_generous answered 2 months ago

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